Okay, he didn't make the century mark, but he came close to the magic number, passing through the damp veil in December, 2006.
I had the good luck to attend one of Mr. Barbera's birthday celebrations at Warner Bros. Animation in Sherman Oaks, either in '06 or '05. He had a long and storied career, and left behind a lot of theatrical shorts, television shows and features for people to watch for the next ... oh ... one or two hundred years. So I think we can say Joe Barbera was the owner of a life well-lived.
Happy Birthday, Joe.